I have a Baba+Boo nappy that I'm trying at the mo. First time I used it it leaked, that was with both inserts in the pocket
too. However, I have now tried it a few
times with one insert and a bamboo booster in the pocket and it hasn't leaked. I have a 17 week old who is quite chubby at 18lbs. If you do have problems with it contact Eve at Baba+Boo, she is lovely and will help you try and find a solution if you do have probs. I'm going to try mine some more and if still successful I'm going to order 5 more.